DatacenterDisk

HGST HUS724030ALA640 vs Western Digital WD

Side-by-side spec and price comparison. Live data from Amazon US.

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Our Recommendation
👑
HGST HUS724030ALA640 3TB SATA Enterprise

HGST HUS724030ALA640 3TB SATA Enterprise offers the best value at $20.00/TB. As a refurb unit, verify SMART data on arrival.

Best $/TB: HGST
Best Warranty: Western Digital
Best for RAID: HGST
Full Specification Comparison
Spec
HGST
HUS724030ALA640 3TB SATA Enterprise
$20.00/TB
Western Digital
WD Purple 3TB WD30PURX
$53.33/TB
Brand
HGST
Western Digital
Model
HUS724030ALA640 3TB SATA Enterprise
WD Purple 3TB WD30PURX
Series
Ultrastar
WD Purple
Part Number
HUS724030ALA640
WD30PURX
$/TB
👑$20.00
$53.33
Price
$59.99
$160.00
Condition
Refurb
New
Capacity
3TB
3TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
—
RPM
7,200
N/A (SSD)
Cache
—
—
Sector Size
512n
—
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
—
—
Workload Tier
nearline
—
In Stock
✓ In Stock
✓ In Stock
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
HGST
Western Digital
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●
●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose HGST HUS724030ALA640 3TB SATA Enterprise if:
  • ✓ You need maximum storage per dollar
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You're comfortable with datacenter refurb to maximize savings
Buy HGST →
Choose Western Digital WD Purple 3TB WD30PURX if:
  • ✓ You need new-with-warranty for compliance or budgeting
Buy Western Digital →

Frequently Asked Questions

HGST HUS724030ALA640 offers better value at $20.00/TB vs $53.33/TB - a 62% price difference. Factor in warranty length and workload rating when the price gap is small.

Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.

Both drives carry similar warranty terms and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.

HGST HUS724030ALA640 is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SATA interface is compatible with all NAS platforms including Synology, QNAP and TrueNAS.